The Volume Shadow Copy service used by System Restore is not working. - help!

Hi
I tried to do a system restore but it failed and I got a message
saying
"There was an unexpected error in the property page: The Volume
Shadow Copy service used by System Restore is not working. For more
information view the event log. (0x81000202)".

>Hi
>I tried to do a system restore but it failed and I got a message
>saying
>"There was an unexpected error in the property page: The Volume
>Shadow Copy service used by System Restore is not working. For more
>information view the event log. (0x81000202)".
>
>Can anyone help me get my system restore back please?